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SF MARATHON 1ST HALF 2026

Serena Lowe

Bib: 20412•F•Age: 27

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 6%
Gender (Female)
#0 / 2930
Top 2%
Division (F25-29)
#0 / 674
Top 1%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
7:51/mi
15:42
→ flat
4M
8:04/mi
31:50
↑ 67↓ 69
6M
8:05/mi
48:01
↑ 1231.1%
8M
8:50/mi
1:05:42
↑ 166↓ 531.1%
9.6M
6:06/mi
1:15:27
↑ 68↓ 1931.5%
10M
14:34/mi
1:21:16
↓ 241.1%
10.5M
3:40/mi
1:23:06
↓ 732.7%
12M
11:03/mi
1:39:41
↑ 2803.2%
Finish· 13.11 mi
7:36/mi
1:48:07
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time48:01
Pace8:00 /mi
2nd Half
Distance7.11 mi
Time1:00:06
Pace8:27 /mi
📊Positive Split: 25.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:53:1115:427:5115:42
7:51
-
4M
4.00 mi07:09:1931:507:5816:08
8:04
+0:13
6M
6.00 mi07:25:3048:018:0016:11
8:05
+0:01
8M
8.00 mi07:43:111:05:428:1317:41
8:50
+0:45
9.6M
9.60 mi07:52:561:15:277:529:45
6:06
-2:44
10M
10.00 mi07:58:451:21:168:085:49
14:34
+8:28
10.5M
10.50 mi08:00:351:23:067:551:50
3:40
-10:54
12M
12.00 mi08:17:101:39:418:1816:35
11:03
+7:23
Finish
13.11 mi08:25:361:48:078:158:26
7:36
-3:27

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

3:40 /mi

Average Pace

8:15 /mi

Slowest Pace

14:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:35

11% of race

Time at Steady Pace

1:14:08

69% of race

Time at Slower Pace

22:24

21% of race

Average Pace: 8:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi06:53:1115:427:5115:42
7:51
#423
4M
4.00 mi07:09:1931:507:5816:08
8:04
#435
6M
6.00 mi07:25:3048:018:0016:11
8:05
#451
8M
8.00 mi07:43:111:05:428:1317:41
8:50
#559
9.6M
9.60 mi07:52:561:15:277:529:45
6:06
#424
10M
10.00 mi07:58:451:21:168:085:49
14:34
#426
10.5M
10.50 mi08:00:351:23:067:551:50
3:40
#414
12M
12.00 mi08:17:101:39:418:1816:35
11:03
#441
Finish
13.11 mi08:25:361:48:078:158:26
7:36
#409
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 6%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

7:39

Segment Time

8:30/mi

Pace

0.90 mi

Distance

Overall

406

Women

57

Division

7

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi4236712614(Top 9%)122(Top 4%)20(Top 3%)
4M4.00 mi2.00 mi435-1268-111+1483(Top 7%)77(Top 3%)11(Top 2%)
6M6.00 mi2.00 mi451-1671-39+2539(Top 8%)88(Top 3%)15(Top 2%)
8M8.00 mi2.00 mi559-10885-1415-61116(Top 17%)218(Top 7%)48(Top 7%)
9.6M9.60 mi1.60 mi424+13565+209+6193(Top 3%)39(Top 1%)5(Top 0.7%)
10M10.00 mi0.40 mi426-266-18+1561(Top 9%)109(Top 4%)12(Top 2%)
10.5M10.50 mi0.50 mi414+1262+48220(Top 3%)17(Top 0.6%)3(Top 0.4%)
12M12.00 mi1.50 mi441-2776-1410-2614(Top 9%)122(Top 4%)20(Top 3%)
Finish13.11 mi1.11 mi409+3264+1210339(Top 5%)44(Top 2%)5(Top 0.7%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 9%
~flat
+5ft-3ft

Overall

614

Females

122

F25-29

20

2M→4M

2.0 - 4.0 mi

Top 7%
×4story building
+67ft-69ft

Overall

483

Females

77

F25-29

11

4M→6M

4.0 - 6.0 mi

Top 8%
×9story building
+123ft-9ft

Overall

539

Females

88

F25-29

15

6M→8M

6.0 - 8.0 mi

Top 17%
×12story building
+166ft-53ft

Overall

1116

Females

218

F25-29

48

8M→9.6M

8.0 - 9.6 mi

Top 3%
×13story building
+68ft-193ft

Overall

193

Females

39

F25-29

5

9.6M→10M

9.6 - 10.0 mi

Top 9%
×2story building
+0ft-24ft

Overall

561

Females

109

F25-29

12

10M→10.5M

10.0 - 10.5 mi

Top 3%
×6story building
+1ft-73ft

Overall

220

Females

17

F25-29

3

10.5M→12M

10.5 - 12.0 mi

Top 9%
×21story building
+280ft-26ft

Overall

614

Females

122

F25-29

20

12M→Finish

12.0 - 13.1 mi

Top 5%
×7story building
+14ft-89ft

Overall

339

Females

44

F25-29

5

Passing Analysis

Category:
Athletes Passed
252*
Passed By
238
Net Change
+14
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#423
2M → 4M2335-12#423#435
4M → 6M1632-16#435#451
6M → 8M8116-108#451#559
8M → 9.6M1383+135#559#424
9.6M → 10M1012-2#424#426
10M → 10.5M120+12#426#414
10.5M → 12M1340-27#414#441
12M → Finish32*0+32#441#409
TOTALS252*238+14

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Questions or issues regarding timing data?

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events